1. Datar, R. (1984). Studies on tangential flow microfiltration of bacterial cell debris. In: Procs. Biotech 84, USA, Vol. 2, p. A15, Online Publ, London.
2. Gornall, A.G., Bardawill, C.J. and David, M.M. (1949). J. Biol. Chem. Vol. 177, p. 751.
3. Hayashi, R., Moore, S. and Stein, W.H. (1973). J. Biol. Chem., Vol. 248, p. 2296.
4. Kula, M.-R., Kroner, K.H. and Hustedt, M. (1982). Purification of enzymes by liquid-liquid extraction. In: Adv. Biochem. Eng., A. Fiechter (ed.), Vol. 24, p. 73. Springer-Verlag, Berlin.
5. Le, M.S. and Atkinson, A. (1985). Process Biochemistry, February, p. 26